RGS394459 Yellow River bridge, 1910 (b/w photo) by Pereira, George Edward (1865-1923); Royal Geographical Society, London, UK; (add.info.: the Yellow River is the second-longest river in China; Originating in the Bayan Har Mountains in Qinghai Province in western China, it flows through nine provinces of China and empties into the Bohai Sea; Brigadier General George Pereira was a British explorer in Central Asia, Tibet and Western China;); 穢 Royal Geographical Society ; British, out of copyright.